using System;
using System.Collections.Generic;

public static class RoadManager
{
    public static bool[,] roads;

    static private void AddRoad(int a, int b)
    {
        roads[a, b] = true;
        roads[b, a] = true;
    }
    static RoadManager()
    {
        roads = new bool[14, 14];
        AddRoad(0, 1);
        AddRoad(0, 2);

        AddRoad(1, 3);
        AddRoad(1, 4);

        AddRoad(2, 5);
        AddRoad(2, 6);

        AddRoad(3, 7);
        AddRoad(4, 8);
        AddRoad(5, 9);
        AddRoad(6, 10);

        AddRoad(11, 7);
        AddRoad(11, 8);

        AddRoad(12, 9);
        AddRoad(12, 10);

        AddRoad(13, 11);
        AddRoad(13, 12);
    }
}
